a-a a-t a-z aaa aap aas aat aay aaz ap- apa app aps apt apy as- asa asp ass ast asy asz at- ata atp ats att atz ay- aya ayp ays ayt ayz az- aza azp azs azt azy azz p-p paa pap pas pat pay paz ppa ppp pps ppt ppz ps- psa psp pss pst psy pt- pta ptp pts ptt pty ptz py- pya pys pyt pzp pzt saa sap sas sat say saz spa spp sps spt spy spz ss- ssa ssp sss sst ssz sta stp sts stt sty stz sy- sya syp sys syt sza szp taa tap tas tat tay taz tpa tpp tps tpt tpz tsa tsp tss tst tsy tta ttp tts ttt tty tya typ tys tyt tza tzs yaa yap yas yat yay yaz ypa yps ysa ysp yss yst ysy ysz yta ytp yts ytt yys yyt yyy yyz yzy zaa zap zas zat zay zaz zpp zpt zsa zst zsz zta zzs zzt zzy zzz